First we need to calculate the slope (m)
m = y2-y1 / x2-x1
m = 10-7 / 8-4
m = 3/4
Now, y - y1 = m(x - x1)
y - 7 = 3/4 (x - 4)
y - 7 = 3x/4 - 3
y = 3x/4 + 4
Multiply both sides by 4,
4y = 3x + 16
3x - 4y = -16
In short, Your Answer would be Option D
Hope this helps!
